我正在关注从Google帐户获取授权令牌的Nick example。 我在调用AccountManagerFuture getResult时遇到困难。我正在使用我的设备(HTC愿望)以及从Eclipse开始的本地Google应用引擎。如果我通过手机连接到互联网,我可以获得身份验证令牌。但我想在本地脱机。你知道我是否应该连接互联网以使其工作? 如果不是,则不清楚getResult方法的作用。它是否从某个地方的谷歌服务器检索到令牌? 谢谢。Android AccountManagerFuture getResult在尝试获取授权令牌时给出IOEXcelption
@Override
protected void onResume() {
super.onResume();
Intent intent = getIntent();
AccountManager accountManager = AccountManager.get(getApplicationContext());
Account account = (Account)intent.getExtras().get("account");
accountManager.getAuthToken(account, "ah", false, new GetAuthTokenCallback(), null);
}
private class GetAuthTokenCallback implements AccountManagerCallback<Bundle> {
public void run(AccountManagerFuture<Bundle> result) {
Bundle bundle;
try {
System.out.println("result.isCancelled"+result.isCancelled());
// this prints false
System.out.println("result.isDone"+result.isDone());
//this prints true
bundle = result.getResult();
// when getResult is called I get an IOException without further details
Intent intent = (Intent)bundle.get(AccountManager.KEY_INTENT);
if(intent != null) {
startActivity(intent);
} else {
onGetAuthToken(bundle);
}
} catch (OperationCanceledException e) {
e.printStackTrace();
} catch (AuthenticatorException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
};
03-19 13:58:03.933:W/System.err的(1801):产生java.io.IOException 03-19 13:58:03.933:W/System.err的(1801):在android.accounts.AccountManager.convertErrorToException(AccountManager.java:1419) 03-19 13:58:03.933:W/System.err(1801):at android.accounts.AccountManager.access $ 400(AccountManager.java:134) 03-19 13:58:03.933:W/System.err(1801):at android.accounts.AccountManager $ AmsTask $ Response.onError(AccountManager.java:1280) 03-19 13:58:03.933:W/System .err(1801):at android.accounts.IAccountManagerResponse $ Stub.onTransact(IAccountManagerResponse.java:69) 03-19 13:58:03.933:W/System.err(1801):at android.os.Binder.execTra nsact(Binder.java:288) 03-19 13:58:03.933:W/System.err(1801):at dalvik.system.NativeStart.run(Native Method)